Its means 'scary'. It's simple. It's not kawaii, meaning 'cute', it's 'SCARY'.
And it isn't a mispelling, either. In Japanese, they use syllables, so there's that extra 'ee' sound at the end. DEAL WITH IT. D:<

Similar to kawaii kowaii (pronounced "co-why-e") if said in japaneese means "freaky" and can misheard and people may think you're calling them Kawaii(cute in japaneese) or they may not know what kowaii means.